Getting a smallblock to rev

Looking at the rules, I don't think you can use anything newer than 72 for heads, block, intake, manifolds etc... For heads I'd run fully ported closed chamber 273 heads with custom domes to get 12:1+ CR, ported 340 intake and exhaust manifolds with a full roller valvetrain and the lightest valvetrain you can afford if done right you should be able to make 450hp around 7000-7500 with an 8500 redline. Good thing about the small displacement engines the powerband has a gentle slope after peak power that's one I'm building one for my 65 Cuda that's gonna used on road courses.